MATHEMATICS HIGH SCHOOL

Remove all grouping symbols and combine like terms,
a - { a - [ a- (2a - b) + 3a ]}

Answers

Answer 1
Answer: a -\{ a - [ a- (2a - b) + 3a ]\}=\n a -\{ a - [ a- 2a + b + 3a ]\}=\n a -\{ a - [ 2a+b ]\}=\n a -\{ a - 2a - b \}=\n a -\{ - a- b \}=\n a+a+b=\n 2a+b
Answer 2
Answer: a - { a - [ a- (2a - b) + 3a ]}
= a - {a - (a - 2a + b + 3a)}
= a - {a - (2a + b)}
= a - (a - 2a -b )
= a - (-a - b)
= a + a + b
= 2a + b

Related Questions

Put these numbers in order from least to greatest 11, 7, 8, 3, 6, three, 16, 10, 16
The diagonals of rectangle NOPQ intersect at point R. If OR=3x-4 and NP=5x+20, solve for x.A. 2 B. 3 C. 12 D. 28
Ann entered a race which required a run of 10 km north and a bike of 120 km west. Determine her running speed if she cycled ten times faster than she ran and the total race took her four hours to complete.
Preston, can you please help!!!!! Or anyone else!!!!
Due tomorrow please help!!!

A system of equations is shown below: n = 3m + 7 n − 2m = 1 What is the solution, in the form (m, n), to the system of equations? (3, 7) (1, 8) (−3, −2) (−6, −11)

Answers

Answer:

( m, n) = ( -6 , 11) .

Step-by-step explanation:

Given  : A system of equations is shown below: n = 3m + 7

n − 2m = 1.

To find :  What is the solution, in the form (m, n), to the system of equations.

Solution : We have given

n = 3m + 7 ------(1)

n − 2m = 1

We can write it as   n = 1 + 2m -----(2)

In equating both equation (1) = (2).

n = n

3m + 7  = 1 +2m.

On  subtracting both sides by 2m

3m -  2m + 7 = 1.

m + 7 = 1

On subtracting by 7 both sides

m = 1 - 7.

m = -6.

On plugging the value of m = -6 in equation 1.

n = 3m + 7

n = 3 (-6) + 7.

n = -18 + 7.

n = -11.

Then solution ( m, n) = ( -6 , 11) .

Therefore, ( m, n) = ( -6 , 11) .
n=3 m+7
n-2 m=1     | -2 m      => n=1+2m

n=3 m+7
n=1+2 m

n=n

3m+7=1+2m       |-7 and -2m
m = -6

n=1+2m 
n=1+2*(-6)
n=-11

(-6,-11)

How do you find perimeter

Answers

All you do is add up all your sides! So if your shape has 4+4+5+5 = 18. All you do is add them up! 

Which difference will be positive?

-4 - (-5)
-4 - 3
8 - 9
-6 - (-4)

Answers

The 1st one -4 - (-5) equals 1

Which graph shows the function f(x) = x with an input of f (1/3x)?

Answers

Answer:

D

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

its b on ed 2020

Determine the digits of Y from these clues. The digits of Y add to 16. The first digit is 4 times the third digit. The second digit is 3 times the third digit. Y is a three digit number.

Answers

Answer:

The number Y is  862.

Step-by-step explanation:

Given : Y is a three digit number and the digits of Y add to 16 and The first digit is 4 times the third digit. The second digit is 3 times the third digit.

We have to find the number Y.

Since, Y is a three digit number

Let Y = abc , where a, b, c are the digits of Y.

According to given question ,

a + b + c = 16  ........(1)

also, The first digit is 4 times the third digit that is a = 4c  ....(2)

and, The second digit is 3 times the third digit that is b= 3c ....(3)

Substitute (2) and (3) in (1) , we get,

⇒ 4c + 3c + c = 16

⇒ 8c = 16

⇒ c = 2

Thus, c = 2

Put c = 2 in (2) and (3) to find a and b ,

thus,  a = 4c = 4(2) = 8

b = 3c = 3(2)= 6

Thus, number Y = abc = 862.
The number is 862. (:

Simplify p(p - q) - q(q - p).

Answers

p(p-q) - q(q-p)

a(b+c) = a(b) + a(c) so...

p(p) + p(-q) - q(q) - q(-p)

p² -pq - q² + qp

a*b = b*a so...

-pq + qp = 0 so...

The answer is...

p² - q²
((p^2)-pq) - ((q^2)-pq)
(p^2) - (q^2) - 2pq
Other Questions
only chocolate and vanilla ice cream cones are sold at an ice cream store. In one day, the number of chocolate cones sold was 1 more than 4 times the number of vanilla cones sold. A total of 121 cones sold that day
What is the answer ​
If y is the principal square root of 5 what must be true?
You have $18 and a coupon for $5 off a pizza order. There is a special today and the cost of alarge pizza is $7. What is the maximum number of pizzas you can buy?